purl
     n 1: gold or silver wire thread
     2: a basic knitting stitch [syn: {purl stitch}]
     v 1: flow in a circular current, of liquids [syn: {eddy}, {whirlpool},
           {swirl}, {whirl}]
     2: make a murmuring sound; "the water was purling"
     3: knit with a purl stitch
     4: edge or border with gold or silver embroidery
     5: embroider with gold or silver thread
Source: WordNet® 2.0

PURL
     Persistent Uniform Resource Locator (URL, WWW)
     
     
Source: Virtual Entity of Relevant Acronyms